/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraActions.h
class FNiagaraParameterGraphDragOperation : public [FGraphSchemaActionDragDropAction](API\Editor\GraphEditor\FGraphSchemaActionDragDropAction)
bool
bAltDrag
Was alt held down at the start of drag
bool
bControlDrag
Was ctrl held down at start of drag